Qingping Qing Bu's "Twenty-four History of Discarded Books": "There is nothing behind you. The books are in hand and they are all sold. " Before and after the innovation of Mao Dun's Novel Monthly: "Sun is very busy every day. He browsed all the books in Jiangnan Library. " Store books. "Zhuangzi Heaven": "The collection of Confucius is in Zhou's family. Zi Lumou said, "I heard that there was a history of book collection in the Zhou Dynasty, so I went back to live without asking. If you want to collect books, you must find a way to find out why. "